<template>
  <div class="main">
    <a-form
      id="formLogin"
      class="user-layout-login"
      ref="formLogin"
      :form="form"
      @submit="handleSubmit"
    >
      <a-tabs
        :activeKey="customActiveKey"
        :tabBarStyle="{ textAlign: 'center', borderBottom: 'unset' }"
        @change="handleTabClick"
      >
        <a-tab-pane key="tab1" tab="账号密码登录">
          <!-- <a-alert v-if="isLoginError" type="error" showIcon style="margin-bottom: 24px;" message="账户或密码错误（admin/ant.design )" /> -->
          <a-form-item>
            <a-input
              size="large"
              type="text"
              placeholder="账户: admin"
              v-decorator="[
                'account',
                {rules: [{ required: true, message: '请输入用户名' }, { validator: handleAccount}], validateTrigger: 'change'}
              ]"
            >
              <a-icon slot="prefix" type="user" :style="{ color: 'rgba(0,0,0,.25)' }"/>
            </a-input>
          </a-form-item>

          <a-form-item>
            <a-input
              size="large"
              type="password"
              autocomplete="false"
              placeholder="密码: admin"
              v-decorator="[
                'password',
                {rules: [{ required: true, message: '请输入密码' }], validateTrigger: 'blur'}
              ]"
            >
              <a-icon slot="prefix" type="lock" :style="{ color: 'rgba(0,0,0,.25)' }"/>
            </a-input>
          </a-form-item>
          <!-- <a-form-item :style="{ display: 'inline-block', width: 'calc(50%)' }">
            <a-input
              size="large"
              type="text"
              autocomplete="false"
              placeholder="验证码"
              v-decorator="[
                'captcha',
                {
                  rules: [{ required: true, message: '请输入验证码' }],
                  validateTrigger: 'blur'
                }
              ]"
            >
              <a-icon slot="prefix" type="key" :style="{ color: 'rgba(0,0,0,.25)' }"></a-icon>
            </a-input>
          </a-form-item>
          <a-form-item :style="{ display: 'inline-block', width: 'calc(50%)', paddingLeft: '10%' }">
            <a-tooltip title="点击刷新验证码">
              <img class="captchaimg" :src="captchaImgSrc" alt="验证码" @click="changeCaptcha">
            </a-tooltip>
          </a-form-item> -->
        </a-tab-pane>
      </a-tabs>

      <a-form-item>
        <a-checkbox v-decorator="['rememberMe']">自动登录</a-checkbox>
      </a-form-item>

      <a-form-item style="margin-top:24px">
        <a-button
          size="large"
          type="primary"
          htmlType="submit"
          class="login-button"
          :loading="state.loginBtn"
          :disabled="state.loginBtn"
        >确定</a-button>
      </a-form-item>

      <div class="user-login-other">
        <span>其他登录方式</span>
        <a>
          <a-icon class="item-icon" type="dingding"></a-icon>
        </a>
        <!-- <router-link class="register" :to="{ name: 'register' }">注册账户</router-link> -->
      </div>
    </a-form>
  </div>
</template>

<script>
import { mapActions } from 'vuex'

export default {
  components: {
    
  },
  data () {
    return {
      customActiveKey: 'tab1',
      loginBtn: false,
      loginType: 0,
      isLoginError: false,
      requiredTwoStepCaptcha: false,
      stepCaptchaVisible: false,
      form: this.$form.createForm(this),
      state: {
        time: 60,
        loginBtn: false,
        // login type: 0 email, 1 account, 2 telephone
        loginType: 0,
        smsSendBtn: false
      },
      captchaImgSrc: process.env.VUE_APP_API_BASE_URL+'/captcha.jpg'
    }
  },
  created () {
    // this.requiredTwoStepCaptcha = true
  },
  methods: {
    ...mapActions(['Login', 'Logout']),
    // handler
    handleAccount(rule, value, callback) {
      const { state } = this
      const regex = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+((\.[a-zA-Z0-9_-]{2,3}){1,2})$/
      if (regex.test(value)) {
        state.loginType = 0
      } else {
        state.loginType = 1
      }
      callback()
    },
    handleTabClick (key) {
      this.customActiveKey = key
      // this.form.resetFields()
    },
    changeCaptcha(){
      this.captchaImgSrc = process.env.VUE_APP_API_BASE_URL+ '/captcha.jpg?time='+ new Date().getTime()
    },
    handleSubmit (e) {
      e.preventDefault()
      const {
        form: { validateFields },
        state,
        customActiveKey,
        Login
      } = this

      state.loginBtn = true

      const validateFieldsKey = customActiveKey === 'tab1' ? ['account', 'password'] : ''

      validateFields(validateFieldsKey, { force: true }, (err, values) => {
        if (!err) {
          console.log('login form', values)
          const loginParams = { ...values }
          delete loginParams.account
          loginParams[!state.loginType ? 'email' : 'account'] = values.account
          loginParams.password = values.password
          loginParams.captcha = values.captcha
          Login(loginParams)
            .then((res) => {
              if(res.code == 200){
                this.loginSuccess(res)
              }else{
                this.loginFailed(res)
              }
            })
            .catch(err => this.requestFailed(err))
            .finally(() => {
              state.loginBtn = false
            })
        } else {
          setTimeout(() => {
            state.loginBtn = false
          }, 600)
        }
      })
    },
    stepCaptchaSuccess () {
      this.loginSuccess()
    },
    stepCaptchaCancel () {
      this.Logout().then(() => {
        this.loginBtn = false
        this.stepCaptchaVisible = false
      })
    },
    loginSuccess (res) {
      this.$router.push({ path: '/' })
      // 延迟 1 秒显示欢迎信息
      setTimeout(() => {
        this.$notification.success({
          message: '登录成功',
          description: `欢迎回来, 祝您工作愉快`
        })
      }, 0)
      this.isLoginError = false
    },
    loginFailed(res){
      this.$message.error(res.msg)
    },
    requestFailed (err) {
      this.isLoginError = true;
      this.$notification['error']({
        message: '错误',
        description: ((err.response || {}).data || {}).message || '请求出现错误，请稍后再试',
        duration: 4
      })
    }
  }
}
</script>

<style lang="less" scoped>
.user-layout-login {
  label {
    font-size: 14px;
  }

  .getCaptcha {
    display: block;
    width: 100%;
    height: 40px;
  }

  .forge-password {
    font-size: 14px;
  }

  button.login-button {
    padding: 0 15px;
    font-size: 16px;
    height: 40px;
    width: 100%;
  }

  .user-login-other {
    text-align: left;
    margin-top: 24px;
    line-height: 22px;

    .item-icon {
      font-size: 24px;
      color: rgba(0, 0, 0, 0.2);
      margin-left: 16px;
      vertical-align: middle;
      cursor: pointer;
      transition: color 0.3s;

      &:hover {
        color: #1890ff;
      }
    }

    .register {
      float: right;
    }
  }
  .captchaimg{
    width: 100%;
    height: 40px;
    vertical-align: top;
    box-sizing: border-box;
    border: 1px solid #ccc;
    cursor: pointer;
  }
}
</style>
